# Laptop power adapter Energy4U PA21 — 45 W, 19 V, 2.37 A, 2.5 mm DC plug

**URL:** https://aio.lv/en/product--energy4u-pa21--11836599
**Data updated:** 2026-03-09 14:50 (EET)
**Category:** Portable Device Chargers
**Manufacturer:** Energy4U
**Manufacturer code:** PA21
**EAN:** 5901571081502
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--energy4u-pa21--11836599

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Energy4U PA21 is a 45 W laptop power adapter delivering 19 V at 2.37 A via a 2.5 mm DC plug. It supplies stable power for compatible laptops and replacements, featuring standard output suitable for charging and operating devices that accept 19 V/2.37 A. Use for home, office, or travel as a compact mains adapter replacement.

## Long description

Energy4U PA21 is a compact 45 W laptop power adapter providing a stable 19 V output at 2.37 A through a 2.5 mm DC plug. Designed as a mains replacement or spare power supply, this adapter supports charging and operating laptops and other devices that accept a 19 V, 2.37 A input. Its small form factor makes it suitable for use at home, in the office, or when traveling.
Advantages
The adapter offers consistent voltage regulation to protect connected devices from fluctuations and deliver reliable performance under normal operating conditions. Its 2.5 mm DC plug matches sockets on compatible laptops and small electronics, and the 45 W power rating is sufficient for many ultrabooks and compact notebooks. The unit’s compact dimensions and lightweight construction simplify storage and transport.
Suitable for
Charging and powering laptops that accept 19 V, 2.37 A with a 2.5 mm DC input
Replacing a lost or damaged original mains adapter with the same voltage and plug size
Use as a secondary adapter for home, office, or travel
Key specifications
Output power: 45 W
Output voltage: 19 V
Output current: 2.37 A
DC connector diameter: 2.5 mm
Type: mains-powered external laptop adapter
How to use
Confirm that your laptop or device requires a 19 V DC input at up to 2.37 A and that the barrel connector matches a 2.5 mm plug before connecting. With the adapter unplugged from mains, insert the DC plug firmly into the device’s power jack. Then connect the adapter to a compatible AC mains outlet and switch on your device. Disconnect the adapter from the mains before removing the DC plug.
Usage recommendations
Use the adapter only with devices that specify 19 V and a current requirement equal to or lower than 2.37 A. Avoid using extension cords or adapters that may compromise electrical safety, and keep the adapter in a well-ventilated area during operation to prevent overheating.

## FAQ

### How much does the Energy4U PA21 laptop adapter 45 W 19 V cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Energy4U products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Energy4U service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11836599/67236224_large.webp